思念泛滥成灾而今你已不在
[sī niàn fàn làn chéng zāi ér jīn nĭ yĭ bù zài]
This nickname expresses the feeling of longing for someone deeply, to a point where it has become overwhelming. However, the person being missed is no longer present in life or has left, leaving one alone with the flood of nostalgia and loneliness.